[ViewVC] Diff of: cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.244 by root, Tue May 30 22:45:52 2017 UTC vs.
Revision 1.266 by root, Tue Aug 14 14:03:14 2018 UTC

…		…
4		4
5	#include "EXTERN.h"	5	#include "EXTERN.h"
6	#include "perl.h"	6	#include "perl.h"
7	#include "XSUB.h"	7	#include "XSUB.h"
8		8
9	#include "schmorp.h"	9	#if !defined mg_findext
		10	# define mg_findext(sv,type,vtbl) mg_find (sv, type)
		11	#endif
10		12
11	#include <stddef.h>	13	#include <stddef.h>
12	#include <stdlib.h>	14	#include <stdlib.h>
13	#include <errno.h>	15	#include <errno.h>
14	#include <sys/types.h>	16	#include <sys/types.h>
		17	#include <sys/socket.h>
15	#include <sys/stat.h>	18	#include <sys/stat.h>
16	#include <limits.h>	19	#include <limits.h>
17	#include <fcntl.h>	20	#include <fcntl.h>
18	#include <sched.h>	21	#include <sched.h>
		22
		23	#if HAVE_SYS_MKDEV_H
		24	# include <sys/mkdev.h>
		25	#elif HAVE_SYS_SYSMACROS_H
		26	# include <sys/sysmacros.h>
		27	#endif
19		28
20	#if _POSIX_MEMLOCK \|\| _POSIX_MEMLOCK_RANGE \|\| _POSIX_MAPPED_FILES	29	#if _POSIX_MEMLOCK \|\| _POSIX_MEMLOCK_RANGE \|\| _POSIX_MAPPED_FILES
21	# include <sys/mman.h>	30	# include <sys/mman.h>
22	#endif	31	#endif
23		32
…		…
104	#define expect_false(expr) expect ((expr) != 0, 0)	113	#define expect_false(expr) expect ((expr) != 0, 0)
105	#define expect_true(expr) expect ((expr) != 0, 1)	114	#define expect_true(expr) expect ((expr) != 0, 1)
106		115
107	/*****************************************************************************/	116	/*****************************************************************************/
108		117
		118	#include "config.h"
		119
		120	#if HAVE_ST_XTIMENSEC
		121	# define ATIMENSEC PL_statcache.st_atimensec
		122	# define MTIMENSEC PL_statcache.st_mtimensec
		123	# define CTIMENSEC PL_statcache.st_ctimensec
		124	#elif HAVE_ST_XTIMESPEC
		125	# define ATIMENSEC PL_statcache.st_atim.tv_nsec
		126	# define MTIMENSEC PL_statcache.st_mtim.tv_nsec
		127	# define CTIMENSEC PL_statcache.st_ctim.tv_nsec
		128	#else
		129	# define ATIMENSEC 0
		130	# define MTIMENSEC 0
		131	# define CTIMENSEC 0
		132	#endif
		133
		134	#include "schmorp.h"
		135
		136	#if HAVE_EVENTFD
		137	# include <sys/eventfd.h>
		138	#endif
		139
		140	#if HAVE_TIMERFD
		141	# include <sys/timerfd.h>
		142	#endif
		143
		144	#if HAVE_RLIMITS
		145	#include <sys/time.h>
		146	#include <sys/resource.h>
		147	#endif
		148
109	typedef SV SV8; /* byte-sv, used for argument-checking */	149	typedef SV SV8; /* byte-sv, used for argument-checking */
110	typedef int aio_rfd; /* read file desriptor */	150	typedef int aio_rfd; /* read file desriptor */
111	typedef int aio_wfd; /* write file descriptor */	151	typedef int aio_wfd; /* write file descriptor */
112		152
113	static HV aio_stash, aio_req_stash, aio_grp_stash, aio_wd_stash;	153	static HV aio_stash, aio_req_stash, aio_grp_stash, aio_wd_stash;
…		…
119	STRLEN stroffset; \	159	STRLEN stroffset; \
120	SV *self;	160	SV *self;
121		161
122	#define EIO_NO_WRAPPERS 1	162	#define EIO_NO_WRAPPERS 1
123		163
124	#include "libeio/config.h"
125	#include "libeio/eio.h"	164	#include "libeio/eio.h"
126		165
127	static int req_invoke (eio_req *req);	166	static int req_invoke (eio_req *req);
128	#define EIO_FINISH(req) req_invoke (req)	167	#define EIO_FINISH(req) req_invoke (req)
129	static void req_destroy (eio_req *grp);	168	static void req_destroy (eio_req *grp);
…		…
145	# else	184	# else
146	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	185	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
147	# endif	186	# endif
148	#endif	187	#endif
149		188
		189	#ifndef makedev
		190	# define makedev(maj,min) (((maj) << 8) \| (min))
		191	#endif
		192	#ifndef major
		193	# define major(dev) ((dev) >> 8)
		194	#endif
		195	#ifndef minor
		196	# define minor(dev) ((dev) & 0xff)
		197	#endif
		198
		199	/* solaris has a non-posix/unix compliant PAGESIZE that breaks compilation */
		200	#ifdef __sun
		201	# undef PAGESIZE
		202	#endif
		203
		204	#if PAGESIZE <= 0
		205	# define PAGESIZE sysconf (_SC_PAGESIZE)
		206	#endif
		207
		208	/*****************************************************************************/
		209
		210	#if !_POSIX_MAPPED_FILES
		211	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
		212	# define munmap(addr,length) EIO_ENOSYS ()
		213	#endif
		214
		215	#if !_POSIX_MEMORY_PROTECTION
		216	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		217	#endif
		218
		219	#if !MREMAP_MAYMOVE
		220	# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
		221	#endif
		222
		223	#define FOREIGN_MAGIC PERL_MAGIC_ext
		224
		225	static int ecb_cold
		226	mmap_free (pTHX_ SV sv, MAGIC mg)
		227	{
		228	int old_errno = errno;
		229	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		230	errno = old_errno;
		231
		232	mg->mg_obj = 0; /* just in case */
		233
		234	SvREADONLY_off (sv);
		235
		236	if (SvPVX (sv) != mg->mg_ptr)
		237	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		238
		239	SvCUR_set (sv, 0);
		240	SvPVX (sv) = 0;
		241	SvOK_off (sv);
		242
		243	return 0;
		244	}
		245
		246	static MGVTBL mmap_vtbl = {
		247	0, 0, 0, 0, mmap_free
		248	};
		249
		250	static int ecb_cold
		251	sysfree_free (pTHX_ SV sv, MAGIC mg)
		252	{
		253	free (mg->mg_ptr);
		254	mg->mg_obj = 0; /* just in case */
		255
		256	SvREADONLY_off (sv);
		257
		258	if (SvPVX (sv) != mg->mg_ptr)
		259	croak ("ERROR: IO::AIO mapped scalar changed location, detected");
		260
		261	SvCUR_set (sv, 0);
		262	SvPVX (sv) = 0;
		263	SvOK_off (sv);
		264
		265	return 0;
		266	}
		267
		268	static MGVTBL sysfree_vtbl = {
		269	0, 0, 0, 0, sysfree_free
		270	};
		271
		272	/*****************************************************************************/
		273
		274	/* helper: set scalar to foreign ptr with custom free */
		275	static void
		276	sv_set_foreign (SV sv, const MGVTBL const vtbl, void *addr, IV length)
		277	{
		278	sv_force_normal (sv);
		279
		280	/* we store the length in mg_obj, as namlen is I32 :/ */
		281	sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
		282	->mg_obj = (SV *)length;
		283
		284	SvUPGRADE (sv, SVt_PV); /* nop... */
		285
		286	if (SvLEN (sv))
		287	Safefree (SvPVX (sv));
		288
		289	SvPVX (sv) = (char *)addr;
		290	SvCUR_set (sv, length);
		291	SvLEN_set (sv, 0);
		292	SvPOK_only (sv);
		293	}
		294
		295	static void
		296	sv_clear_foreign (SV *sv)
		297	{
		298	/* todo: iterate over magic and only free ours, but of course */
		299	/* the perl5porters will call that (correct) behaviour buggy */
		300	sv_unmagic (sv, FOREIGN_MAGIC);
		301	}
		302
		303	/*****************************************************************************/
		304
150	/* defines all sorts of constants to 0 unless they are already defined */	305	/* defines all sorts of constants to 0 unless they are already defined */
151	/* also provides const_iv_ and const_niv_ macros for them */	306	/* also provides const_iv_ and const_niv_ macros for them */
152	#include "def0.h"	307	#include "def0.h"
153
154	#ifndef makedev
155	# define makedev(maj,min) (((maj) << 8) \| (min))
156	#endif
157	#ifndef major
158	# define major(dev) ((dev) >> 8)
159	#endif
160	#ifndef minor
161	# define minor(dev) ((dev) & 0xff)
162	#endif
163
164	#if PAGESIZE <= 0
165	# define PAGESIZE sysconf (_SC_PAGESIZE)
166	#endif
167		308
168	/*****************************************************************************/	309	/*****************************************************************************/
169		310
170	static void	311	static void
171	fiemap (eio_req *req)	312	fiemap (eio_req *req)
…		…
591	SvSETMAGIC (req->sv2);	732	SvSETMAGIC (req->sv2);
592	PUSHs (sv_result);	733	PUSHs (sv_result);
593	}	734	}
594	break;	735	break;
595		736
		737	case EIO_SLURP:
		738	{
		739	if (req->result >= 0)
		740	{
		741	/* if length was originally not known, we steal the malloc'ed memory */
		742	if (req->flags & EIO_FLAG_PTR2_FREE)
		743	{
		744	req->flags &= ~EIO_FLAG_PTR2_FREE;
		745	sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
		746	}
		747	else
		748	{
		749	SvCUR_set (req->sv2, req->result);
		750	*SvEND (req->sv2) = 0;
		751	SvPOK_only (req->sv2);
		752	}
		753
		754	SvSETMAGIC (req->sv2);
		755	}
		756
		757	PUSHs (sv_result);
		758	}
		759	break;
		760
596	case EIO_CUSTOM:	761	case EIO_CUSTOM:
597	if (req->feed == fiemap)	762	if (req->feed == fiemap)
598	{	763	{
599	#if HAVE_FIEMAP	764	#if HAVE_FIEMAP
600	if (!req->result)	765	if (!req->result)
…		…
743	create_respipe ();	908	create_respipe ();
744		909
745	if (eio_init (want_poll, done_poll) < 0)	910	if (eio_init (want_poll, done_poll) < 0)
746	croak ("IO::AIO: unable to initialise eio library");	911	croak ("IO::AIO: unable to initialise eio library");
747	}	912	}
748
749	/*****************************************************************************/
750
751	#if !_POSIX_MAPPED_FILES
752	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
753	# define munmap(addr,length) EIO_ENOSYS ()
754	#endif
755
756	#if !_POSIX_MEMORY_PROTECTION
757	# define mprotect(addr,len,prot) EIO_ENOSYS ()
758	#endif
759
760	#define MMAP_MAGIC PERL_MAGIC_ext
761
762	static int ecb_cold
763	mmap_free (pTHX_ SV sv, MAGIC mg)
764	{
765	int old_errno = errno;
766	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
767	errno = old_errno;
768
769	mg->mg_obj = 0; /* just in case */
770
771	SvREADONLY_off (sv);
772
773	if (SvPVX (sv) != mg->mg_ptr)
774	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
775
776	SvCUR_set (sv, 0);
777	SvPVX (sv) = 0;
778	SvOK_off (sv);
779
780	return 0;
781	}
782
783	static MGVTBL mmap_vtbl = {
784	0, 0, 0, 0, mmap_free
785	};
786		913
787	/*****************************************************************************/	914	/*****************************************************************************/
788		915
789	static SV *	916	static SV *
790	get_cb (SV *cb_sv)	917	get_cb (SV *cb_sv)
…		…
886	req_set_path1 (req, fh_or_path);	1013	req_set_path1 (req, fh_or_path);
887	break;	1014	break;
888	}	1015	}
889	}	1016	}
890		1017
		1018	/*****************************************************************************/
		1019
		1020	static void
		1021	ts_set (struct timespec *ts, NV value)
		1022	{
		1023	ts->tv_sec = value;
		1024	ts->tv_nsec = (value - ts->tv_sec) * 1e9;
		1025	}
		1026
		1027	static NV
		1028	ts_get (const struct timespec *ts)
		1029	{
		1030	return ts->tv_sec + ts->tv_nsec * 1e-9;
		1031	}
		1032
		1033	/*****************************************************************************/
		1034
891	XS(boot_IO__AIO) ecb_cold;	1035	XS(boot_IO__AIO) ecb_cold;
892		1036
893	MODULE = IO::AIO PACKAGE = IO::AIO	1037	MODULE = IO::AIO PACKAGE = IO::AIO
894		1038
895	PROTOTYPES: ENABLE	1039	PROTOTYPES: ENABLE
…		…
924	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)	1068	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
925	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)	1069	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
926	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)	1070	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
927	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)	1071	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
928	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)	1072	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
929	const_niv (MADV_FREE , POSIX_MADV_FREE)
930		1073
931	/* the second block will be 0 when missing */	1074	/* the second block will be 0 when missing */
		1075	const_iv (O_ACCMODE)
		1076
932	const_iv (O_RDONLY)	1077	const_iv (O_RDONLY)
933	const_iv (O_WRONLY)	1078	const_iv (O_WRONLY)
934	const_iv (O_RDWR)	1079	const_iv (O_RDWR)
935	const_iv (O_CREAT)	1080	const_iv (O_CREAT)
936	const_iv (O_TRUNC)	1081	const_iv (O_TRUNC)
…		…
995	const_iv (MAP_NONBLOCK)	1140	const_iv (MAP_NONBLOCK)
996	const_iv (MAP_GROWSDOWN)	1141	const_iv (MAP_GROWSDOWN)
997	const_iv (MAP_32BIT)	1142	const_iv (MAP_32BIT)
998	const_iv (MAP_HUGETLB)	1143	const_iv (MAP_HUGETLB)
999	const_iv (MAP_STACK)	1144	const_iv (MAP_STACK)
		1145
		1146	const_iv (MREMAP_MAYMOVE)
		1147	const_iv (MREMAP_FIXED)
		1148
		1149	const_iv (F_DUPFD_CLOEXEC)
		1150
		1151	const_iv (MSG_CMSG_CLOEXEC)
		1152	const_iv (SOCK_CLOEXEC)
		1153
		1154	const_iv (F_OFD_GETLK)
		1155	const_iv (F_OFD_SETLK)
		1156	const_iv (F_OFD_GETLKW)
1000		1157
1001	const_iv (FIFREEZE)	1158	const_iv (FIFREEZE)
1002	const_iv (FITHAW)	1159	const_iv (FITHAW)
1003	const_iv (FITRIM)	1160	const_iv (FITRIM)
1004	const_iv (FICLONE)	1161	const_iv (FICLONE)
…		…
1073	const_iv (SPLICE_F_MOVE)	1230	const_iv (SPLICE_F_MOVE)
1074	const_iv (SPLICE_F_NONBLOCK)	1231	const_iv (SPLICE_F_NONBLOCK)
1075	const_iv (SPLICE_F_MORE)	1232	const_iv (SPLICE_F_MORE)
1076	const_iv (SPLICE_F_GIFT)	1233	const_iv (SPLICE_F_GIFT)
1077		1234
		1235	const_iv (EFD_CLOEXEC)
		1236	const_iv (EFD_NONBLOCK)
		1237	const_iv (EFD_SEMAPHORE)
		1238
		1239	const_iv (CLOCK_REALTIME)
		1240	const_iv (CLOCK_MONOTONIC)
		1241	const_iv (CLOCK_BOOTTIME)
		1242	const_iv (CLOCK_REALTIME_ALARM)
		1243	const_iv (CLOCK_BOOTTIME_ALARM)
		1244
		1245	const_iv (TFD_NONBLOCK)
		1246	const_iv (TFD_CLOEXEC)
		1247
		1248	const_iv (TFD_TIMER_ABSTIME)
		1249	const_iv (TFD_TIMER_CANCEL_ON_SET)
		1250
1078	/* these are libeio constants, and are independent of gendef0 */	1251	/* these are libeio constants, and are independent of gendef0 */
1079	const_eio (SEEK_SET)	1252	const_eio (SEEK_SET)
1080	const_eio (SEEK_CUR)	1253	const_eio (SEEK_CUR)
1081	const_eio (SEEK_END)	1254	const_eio (SEEK_END)
1082		1255
…		…
1095		1268
1096	const_eio (FALLOC_FL_KEEP_SIZE)	1269	const_eio (FALLOC_FL_KEEP_SIZE)
1097	const_eio (FALLOC_FL_PUNCH_HOLE)	1270	const_eio (FALLOC_FL_PUNCH_HOLE)
1098	const_eio (FALLOC_FL_COLLAPSE_RANGE)	1271	const_eio (FALLOC_FL_COLLAPSE_RANGE)
1099	const_eio (FALLOC_FL_ZERO_RANGE)	1272	const_eio (FALLOC_FL_ZERO_RANGE)
		1273	const_eio (FALLOC_FL_INSERT_RANGE)
		1274	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1275
		1276	const_eio (RENAME_NOREPLACE)
		1277	const_eio (RENAME_EXCHANGE)
		1278	const_eio (RENAME_WHITEOUT)
1100		1279
1101	const_eio (READDIR_DENTS)	1280	const_eio (READDIR_DENTS)
1102	const_eio (READDIR_DIRS_FIRST)	1281	const_eio (READDIR_DIRS_FIRST)
1103	const_eio (READDIR_STAT_ORDER)	1282	const_eio (READDIR_STAT_ORDER)
1104	const_eio (READDIR_FOUND_UNKNOWN)	1283	const_eio (READDIR_FOUND_UNKNOWN)
…		…
1459	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);	1638	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1460		1639
1461	REQ_SEND;	1640	REQ_SEND;
1462	}	1641	}
1463		1642
		1643	void
		1644	st_xtime ()
		1645	ALIAS:
		1646	st_atime = 1
		1647	st_mtime = 2
		1648	st_ctime = 4
		1649	st_xtime = 7
		1650	PPCODE:
		1651	EXTEND (SP, 3);
		1652	if (ix & 1) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
		1653	if (ix & 2) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
		1654	if (ix & 4) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
		1655
		1656	void
		1657	st_xtimensec ()
		1658	ALIAS:
		1659	st_atimensec = 1
		1660	st_mtimensec = 2
		1661	st_ctimensec = 4
		1662	st_xtimensec = 7
		1663	PPCODE:
		1664	EXTEND (SP, 3);
		1665	if (ix & 1) PUSHs (newSViv (ATIMENSEC));
		1666	if (ix & 2) PUSHs (newSViv (MTIMENSEC));
		1667	if (ix & 4) PUSHs (newSViv (CTIMENSEC));
		1668
1464	UV	1669	UV
1465	major (UV dev)	1670	major (UV dev)
1466	ALIAS:	1671	ALIAS:
1467	minor = 1	1672	minor = 1
1468	CODE:	1673	CODE:
…		…
1591		1796
1592	REQ_SEND;	1797	REQ_SEND;
1593	}	1798	}
1594		1799
1595	void	1800	void
		1801	aio_rename2 (SV8 oldpath, SV8 newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1802	PPCODE:
		1803	{
		1804	eio_wd wd2 = 0;
		1805	dREQ;
		1806
		1807	req->type = EIO_RENAME;
		1808	req_set_path1 (req, oldpath);
		1809	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1810	req->int2 = flags;
		1811	req->int3 = (long)wd2;
		1812
		1813	REQ_SEND;
		1814	}
		1815
		1816	void
1596	aio_mknod (SV8 pathname, int mode, UV dev, SV callback = &PL_sv_undef)	1817	aio_mknod (SV8 pathname, int mode, UV dev, SV callback = &PL_sv_undef)
1597	PPCODE:	1818	PPCODE:
1598	{	1819	{
1599	dREQ;	1820	dREQ;
1600		1821
…		…
1702	req->int2 = flags;	1923	req->int2 = flags;
1703	req->int3 = SvOK (count) ? SvIV (count) : -1;	1924	req->int3 = SvOK (count) ? SvIV (count) : -1;
1704	#endif	1925	#endif
1705		1926
1706	REQ_SEND;	1927	REQ_SEND;
		1928	}
		1929
		1930	void
		1931	aio_slurp (SV pathname, off_t offset, UV length, SV8 data, SV *callback = &PL_sv_undef)
		1932	PPCODE:
		1933	{
		1934	char *svptr = 0;
		1935
		1936	sv_clear_foreign (data);
		1937
		1938	if (length) /* known length, directly read into scalar */
		1939	{
		1940	if (!SvPOK (data) \|\| SvLEN (data) >= SvCUR (data))
		1941	svptr = sv_grow (data, length + 1);
		1942	else if (SvCUR (data) < length)
		1943	croak ("length outside of scalar, and cannot grow");
		1944	else
		1945	svptr = SvPVbyte_nolen (data);
		1946	}
		1947
		1948	{
		1949	dREQ;
		1950
		1951	req->type = EIO_SLURP;
		1952	req_set_path1 (req, pathname);
		1953	req->offs = offset;
		1954	req->size = length;
		1955	req->sv2 = SvREFCNT_inc (data);
		1956	req->ptr2 = svptr;
		1957
		1958	if (!SvREADONLY (data))
		1959	{
		1960	SvREADONLY_on (data);
		1961	req->flags \|= FLAG_SV2_RO_OFF;
		1962	}
		1963
		1964	REQ_SEND;
		1965	}
1707	}	1966	}
1708		1967
1709	void	1968	void
1710	aio_busy (double delay, SV *callback = &PL_sv_undef)	1969	aio_busy (double delay, SV *callback = &PL_sv_undef)
1711	PPCODE:	1970	PPCODE:
…		…
1848	RETVAL	2107	RETVAL
1849		2108
1850	void	2109	void
1851	mmap (SV scalar, STRLEN length, int prot, int flags, SV fh = &PL_sv_undef, off_t offset = 0)	2110	mmap (SV scalar, STRLEN length, int prot, int flags, SV fh = &PL_sv_undef, off_t offset = 0)
1852	PPCODE:	2111	PPCODE:
1853	sv_unmagic (scalar, MMAP_MAGIC);	2112	sv_clear_foreign (scalar);
1854	{	2113	{
1855	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	2114	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1856	void addr = (void )mmap (0, length, prot, flags, fd, offset);	2115	void addr = (void )mmap (0, length, prot, flags, fd, offset);
1857	if (addr == (void *)-1)	2116	if (addr == (void *)-1)
1858	XSRETURN_NO;	2117	XSRETURN_NO;
1859		2118
1860	sv_force_normal (scalar);	2119	sv_set_foreign (scalar, &mmap_vtbl, addr, length);
1861
1862	/* we store the length in mg_obj, as namlen is I32 :/ */
1863	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1864	->mg_obj = (SV *)length;
1865
1866	SvUPGRADE (scalar, SVt_PV); /* nop... */
1867		2120
1868	if (!(prot & PROT_WRITE))	2121	if (!(prot & PROT_WRITE))
1869	SvREADONLY_on (scalar);	2122	SvREADONLY_on (scalar);
1870		2123
1871	if (SvLEN (scalar))
1872	Safefree (SvPVX (scalar));
1873
1874	SvPVX (scalar) = (char *)addr;
1875	SvCUR_set (scalar, length);
1876	SvLEN_set (scalar, 0);
1877	SvPOK_only (scalar);
1878
1879	XSRETURN_YES;	2124	XSRETURN_YES;
1880	}	2125	}
1881		2126
1882	void	2127	void
1883	munmap (SV *scalar)	2128	munmap (SV *scalar)
1884	CODE:	2129	CODE:
1885	sv_unmagic (scalar, MMAP_MAGIC);	2130	sv_clear_foreign (scalar);
		2131
		2132	SV *
		2133	mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
		2134	CODE:
		2135	{
		2136	MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
		2137	void *new;
		2138
		2139	if (!mg \|\| SvPVX (scalar) != mg->mg_ptr)
		2140	croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
		2141
		2142	new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
		2143
		2144	RETVAL = &PL_sv_no;
		2145
		2146	if (new != (void *)-1)
		2147	{
		2148	RETVAL = new == (void *)mg->mg_ptr
		2149	? newSVpvn ("0 but true", 10)
		2150	: &PL_sv_yes;
		2151
		2152	mg->mg_ptr = (char *)new;
		2153	mg->mg_obj = (SV *)new_length;
		2154
		2155	SvPVX (scalar) = mg->mg_ptr;
		2156	SvCUR_set (scalar, new_length);
		2157	}
		2158	}
		2159	OUTPUT:
		2160	RETVAL
1886		2161
1887	int	2162	int
1888	madvise (SV scalar, STRLEN offset = 0, SV length = &PL_sv_undef, IV advice_or_prot)	2163	madvise (SV scalar, STRLEN offset = 0, SV length = &PL_sv_undef, IV advice_or_prot)
1889	ALIAS:	2164	ALIAS:
1890	mprotect = 1	2165	mprotect = 1
…		…
2020	{	2295	{
2021	EXTEND (SP, 2);	2296	EXTEND (SP, 2);
2022	PUSHs (newmortalFH (fd[0], O_RDONLY));	2297	PUSHs (newmortalFH (fd[0], O_RDONLY));
2023	PUSHs (newmortalFH (fd[1], O_WRONLY));	2298	PUSHs (newmortalFH (fd[1], O_WRONLY));
2024	}	2299	}
		2300	}
		2301
		2302	void
		2303	eventfd (unsigned int initval = 0, int flags = 0)
		2304	PPCODE:
		2305	{
		2306	int fd;
		2307	#if HAVE_EVENTFD
		2308	fd = eventfd (initval, flags);
		2309	#else
		2310	fd = (errno = ENOSYS, -1);
		2311	#endif
		2312
		2313	XPUSHs (newmortalFH (fd, O_RDWR));
		2314	}
		2315
		2316	void
		2317	timerfd_create (int clockid, int flags = 0)
		2318	PPCODE:
		2319	{
		2320	int fd;
		2321	#if HAVE_TIMERFD
		2322	fd = timerfd_create (clockid, flags);
		2323	#else
		2324	fd = (errno = ENOSYS, -1);
		2325	#endif
		2326
		2327	XPUSHs (newmortalFH (fd, O_RDWR));
		2328	}
		2329
		2330	void
		2331	timerfd_settime (SV *fh, int flags, NV interval, NV value)
		2332	PPCODE:
		2333	{
		2334	int fd = s_fileno_croak (fh, 0);
		2335	#if HAVE_TIMERFD
		2336	int res;
		2337	struct itimerspec its, ots;
		2338
		2339	ts_set (&its.it_interval, interval);
		2340	ts_set (&its.it_value , value);
		2341	res = timerfd_settime (fd, flags, &its, &ots);
		2342
		2343	if (!res)
		2344	{
		2345	EXTEND (SP, 2);
		2346	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2347	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2348	}
		2349	#else
		2350	errno = ENOSYS;
		2351	#endif
		2352	}
		2353
		2354	void
		2355	timerfd_gettime (SV *fh)
		2356	PPCODE:
		2357	{
		2358	int fd = s_fileno_croak (fh, 0);
		2359	#if HAVE_TIMERFD
		2360	int res;
		2361	struct itimerspec ots;
		2362	res = timerfd_gettime (fd, &ots);
		2363
		2364	if (!res)
		2365	{
		2366	EXTEND (SP, 2);
		2367	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2368	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2369	}
		2370	#else
		2371	errno = ENOSYS;
		2372	#endif
		2373	}
		2374
		2375	UV
		2376	get_fdlimit ()
		2377	CODE:
		2378	#if HAVE_RLIMITS
		2379	struct rlimit rl;
		2380	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2381	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2382	#endif
		2383	XSRETURN_UNDEF;
		2384	OUTPUT:
		2385	RETVAL
		2386
		2387	void
		2388	min_fdlimit (UV limit = 0x7fffffffU)
		2389	CODE:
		2390	{
		2391	#if HAVE_RLIMITS
		2392	struct rlimit rl;
		2393	rlim_t orig_rlim_max;
		2394	UV bit;
		2395
		2396	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2397	goto fail;
		2398
		2399	if (rl.rlim_cur == RLIM_INFINITY)
		2400	XSRETURN_YES;
		2401
		2402	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2403
		2404	if (rl.rlim_cur < limit)
		2405	{
		2406	rl.rlim_cur = limit;
		2407
		2408	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2409	rl.rlim_max = rl.rlim_cur;
		2410	}
		2411
		2412	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2413	XSRETURN_YES;
		2414
		2415	if (errno == EPERM)
		2416	{
		2417	/* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2418	/* our limit overflows a system-wide limit */
		2419	/* try an adaptive algorithm, but do not lower the hardlimit */
		2420	rl.rlim_max = 0;
		2421	for (bit = 0x40000000U; bit; bit >>= 1)
		2422	{
		2423	rl.rlim_max \|= bit;
		2424	rl.rlim_cur = rl.rlim_max;
		2425
		2426	/* nevr decrease the hard limit */
		2427	if (rl.rlim_max < orig_rlim_max)
		2428	break;
		2429
		2430	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2431	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2432	}
		2433
		2434	/* now, raise the soft limit to the max permitted */
		2435	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2436	{
		2437	rl.rlim_cur = rl.rlim_max;
		2438	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2439	errno = EPERM;
		2440	}
		2441	}
		2442	#endif
		2443	fail:
		2444	XSRETURN_UNDEF;
2025	}	2445	}
2026		2446
2027	void _on_next_submit (SV *cb)	2447	void _on_next_submit (SV *cb)
2028	CODE:	2448	CODE:
2029	SvREFCNT_dec (on_next_submit);	2449	SvREFCNT_dec (on_next_submit);

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Comparing IO-AIO/AIO.xs (file contents): Revision 1.244 by root, Tue May 30 22:45:52 2017 UTC vs. Revision 1.266 by root, Tue Aug 14 14:03:14 2018 UTC

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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.244 by root, Tue May 30 22:45:52 2017 UTC vs.
Revision 1.266 by root, Tue Aug 14 14:03:14 2018 UTC